/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _LINUX_VT_H

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#define _LINUX_VT_H

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/*

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* These constants are also useful for user-level apps (e.g., VC

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* resizing).

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*/

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#define MIN_NR_CONSOLES 1 /* must be at least 1 */

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#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */

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/* Note: the ioctl VT_GETSTATE does not work for

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consoles 16 and higher (since it returns a short) */

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/* 0x56 is 'V', to avoid collision with termios and kd */

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#define VT_OPENQRY 0x5600 /* find available vt */

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struct vt_mode {

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char mode; /* vt mode */

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char waitv; /* if set, hang on writes if not active */

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short relsig; /* signal to raise on release req */

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short acqsig; /* signal to raise on acquisition */

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short frsig; /* unused (set to 0) */

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};

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#define VT_GETMODE 0x5601 /* get mode of active vt */

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#define VT_SETMODE 0x5602 /* set mode of active vt */

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#define VT_AUTO 0x00 /* auto vt switching */

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#define VT_PROCESS 0x01 /* process controls switching */

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#define VT_ACKACQ 0x02 /* acknowledge switch */

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struct vt_stat {

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unsigned short v_active; /* active vt */

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unsigned short v_signal; /* signal to send */

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unsigned short v_state; /* vt bitmask */

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};

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#define VT_GETSTATE 0x5603 /* get global vt state info */

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#define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */

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#define VT_RELDISP 0x5605 /* release display */

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#define VT_ACTIVATE 0x5606 /* make vt active */

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#define VT_WAITACTIVE 0x5607 /* wait for vt active */

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#define VT_DISALLOCATE 0x5608 /* free memory associated to vt */

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struct vt_sizes {

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unsigned short v_rows; /* number of rows */

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unsigned short v_cols; /* number of columns */

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unsigned short v_scrollsize; /* number of lines of scrollback */

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};

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#define VT_RESIZE 0x5609 /* set kernel's idea of screensize */

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struct vt_consize {

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unsigned short v_rows; /* number of rows */

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unsigned short v_cols; /* number of columns */

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unsigned short v_vlin; /* number of pixel rows on screen */

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unsigned short v_clin; /* number of pixel rows per character */

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unsigned short v_vcol; /* number of pixel columns on screen */

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unsigned short v_ccol; /* number of pixel columns per character */

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};

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#define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */

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#define VT_LOCKSWITCH 0x560B /* disallow vt switching */

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#define VT_UNLOCKSWITCH 0x560C /* allow vt switching */

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#define VT_GETHIFONTMASK 0x560D /* return hi font mask */

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struct vt_event {

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unsigned int event;

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#define VT_EVENT_SWITCH 0x0001 /* Console switch */

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#define VT_EVENT_BLANK 0x0002 /* Screen blank */

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#define VT_EVENT_UNBLANK 0x0004 /* Screen unblank */

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#define VT_EVENT_RESIZE 0x0008 /* Resize display */

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#define VT_MAX_EVENT 0x000F

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unsigned int oldev; /* Old console */

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unsigned int newev; /* New console (if changing) */

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unsigned int pad[4]; /* Padding for expansion */

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};

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#define VT_WAITEVENT 0x560E /* Wait for an event */

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struct vt_setactivate {

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unsigned int console;

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struct vt_mode mode;

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};

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#define VT_SETACTIVATE 0x560F /* Activate and set the mode of a console */

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#endif /* _LINUX_VT_H */

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